35s program checksums
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04-01-2015, 09:19 AM
Post: #18
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RE: 35s program checksums
(01-21-2015 11:36 PM)MarkHaysHarris777 Wrote:(01-21-2015 11:12 PM)Mark Hardman Wrote: 35s checksum problemI keyed the example from above, and I get the checksums of the original author: Checksums are totally useless. Your example is nugatory and shows lack of investigation. Checksums change depending on what other programs or equations are in the memory. First enter another program then enter these programs again. Or save some equations in the equation list. Checksums are different. Stating they are useful to see if you have accidently changed a program yourself is not really useful. What if you've deleted the program and need to re-enter it? Will you remember exactly what programs and equations were present when you first entered the program? The use of checksums on other HP calculators has made it easier for others to enter them correctly - hence it being quoted e.g. this hp-32s program has checksums at the end of each label. Now see Pauli's game for the 35s Game for HP-35s, it took me a few hours to key in and no useful checksum meant several more to re-read & test. And now the cherry on the cake: I had about 15kb of programmes and the batteries died (after leaving the calculator unattended for about 2 months). I have the listings of all these programmes, but do you really think I remember in what order I had entered them or what equations were saved at the point I had originally entered each program? Now I have 15kb of programs to re-enter that I have to spend hours to manually re-check, test etc. to ensure they're error free!!! The bug list is quite correct - checksums are useless. And it is a bug. |
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